Popis: |
Screening Jambi local rice (Oryza sativa L.) adaptive to drought stress at seeding stage, aimed to obtain Jambi local rice variety which are adaptive to extreme drought conditions to be able to cope with uncertain rainfall rate as a result of climate change, a source of enrichment for the germplasm assembly and improving new varieties that can cope with global climate change in increasing rice produce. The research was conducted in 2013 at the Balai Besar Penelitian Padi, Kebun Percobaan Padi Muara Bogor (Rice Research Institute, Rice Experimental Farm Muara Bogor). Materials examined were Jambi local rice varieties based on exploration results in 2004, 2009 and 2013 conducted in Jambi province. Drought screening was performed on seedling at 14 and 21 days after sowing (DAS) with soil moisture level under 20% to 105 Jambi local rice varieties and 2 control varieties. The control varieties are Salumpikit (drought tolerant) and IR20 (drought sensitive) obtained from Balai Besar Penelitian Padi Kebun Percobaan Bogor. This research is selection process conducted on Jambi local rice varieties against drought stress performed during seeding phase. Observations were conducted on survival rate percentage (survival). The results exhibits 26 out of 105 local rice varieties were evaluated as drought resistant at soil moisture level ± 17%, 14 varieties are drought resistant 14 and 21 DAS, 10 varieties resistant to drought at 14 DAS and 2 drought resistant varieties at 21 DAS. |